Transparent Sealing Structure for LED Light Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current light-emitting diode (LED) designs struggle to maximize light efficiency due to limitations in sealing structures, which affect light distribution and overall luminance, particularly in applications requiring higher luminance.
Innovation Solution
A photoelectronic device with a carrier, a light-emitting component, and a transparent sealing structure with specific dimensional configurations, including a patterned structure that restricts the sealing material to enhance light reflection and emission, optimizing the ratios of sealing height to contact length and light-emitting component width to carrier width for improved light efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cup-like sealing structure is adopted to control light distribution, then the sealing function is improved, but the light efficiency is reduced due to light absorption and scattering by the sealing material
Solution Approach 1:
The sealing structure is designed to be transparent rather than opaque, changing its optical properties from light-absorbing to light-transmitting. This allows the sealing material to no longer absorb or scatter light, thereby improving light efficiency while maintaining the sealing function.
Solution Approach 2:
The invention transitions from a traditional cup-like 3D sealing structure to a planar transparent sealing layer with specific dimensional ratios (length-to-width ratio between 0.5-2.0). This dimensional change reduces light interaction paths and enables better light transmission while preserving sealing effectiveness.
2Reliability
If the sealing structure dimensions are increased to improve sealing coverage, then the sealing reliability is improved, but the light distribution and luminance are adversely affected
Solution Approach 1:
The invention optimizes specific dimensional parameters of the transparent sealing structure, particularly the length-to-width ratio (controlled between 0.5-2.0) and thickness, to achieve a balance between sealing coverage and light transmission. By precisely controlling these parameters, both sealing reliability and luminance are improved simultaneously.
3Ease of manufacture
If traditional sealing materials and structures are used, then the manufacturing process is simple, but the light efficiency and energy conversion are suboptimal
Solution Approach 1:
The invention changes the optical parameters of the sealing structure (transparency, thickness, dimensional ratios) rather than fundamentally altering the manufacturing process. This allows traditional manufacturing methods to be used while achieving superior energy conversion efficiency through optimized optical properties.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed design significantly enhances light efficiency by controlling the transparent sealing structure's dimensions, achieving higher luminance and improved light distribution, suitable for various applications such as backlight modules and lighting devices.
Implementation Method 1
sealing materials, the reflection ability of the carrier, the shape of the cup and so on can also affect light efficiency
Data Source
AI summary
A photoelectronic device including a carrier, a light-emitting component mounted on the carrier; a patterned structure deposited on the carrier and around the light-emitting component; and a transparent sealing structure formed above the light-emitting component. The patterned structure mentioned above can cause the transparent sealing structure to be focused above the light-emitting component, and restrained in the patterned structure. The transparent sealing structure with predetermined proportional configuration is obtained by controlling the quantity of the transparent sealing structure. Therefore light efficiency of the photoelectronic device can be greatly improved.